Tow-Boot, a new U-Boot option for Pinephone Pro and other devices

[wibble]

The multiboot image is built to use and take advantage of the features of megi's p-boot. It doesn't have the config file that tow-boot looks to for the kernel, initrd, boot args etc. so tow-boot doesn't find anything that it knows how to boot. Even if the partition layout is something tow-boot could read, and you translated the p-boot config for the boot options to the format tow-boot uses, I don't think you'd have a way to select which multi-boot option you wanted as tow-boot doesn't have a GUI on the pinephone. It's the wrong tool for the job - stick to p-boot for multiboot.